Multiparametric investigation on NOx removal from simulated diesel exhaust with hydrocarbons by pulsed corona discharge

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Filimonova, Elena; Kim, yongho; Hong, Sang Hee; Song, Young-Hoon

Issue Date
Institute of Physics
J. Phys. D (Appl. Phys.) 35 2795-2807
NOx removaldiesel exhaustpulsed corona dischargehysrocarbon additivesmultiparametric approachnumerical and experimental results
The influence of temperature and hydrocarbon additives on NOx removal and CO production has been studied by numerical modelling and process experiments for a synthetic gas mixture consisting of N2, O2, H2O and CO2
in a pulsed corona reactor. The NO reduction of more than 99% was achieved at the energy cost of ∼14 eV per NO molecule in the presence of 550 ppm C3H6 additive at T = 393 K. The simulated results agree well with
the experimental data measured in the NO and NOx removal and C2H4 and C3H6 decomposition. Within a limited framework of non-uniform
modelling approach, the temperature effect on the streamer nature discharge has been taken into account. Main reaction paths for the C2H4 and C3H6 decomposition and leading reactions of NOx conversion, CO, CH2O, CH3CHO productions are presented. Calculated concentrations of some by-products are given. The effect of the C3H6 + O reaction on the NOx oxidation and C3H6 decomposition using several channels and their rate
constants taken from the literature has been examined numerically. The best fitting data for the C3H6 + O reaction are chosen.
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Energy Systems Engineering (에너지시스템공학부)Nuclear Engineering (원자핵공학전공)Journal Papers (저널논문_원자핵공학과)
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